3 years ago

Find an explicit formula for the arithmetic sequence 81,54, 27,0

Mathematics

1 answer:

aalyn [17]3 years ago

4 0

Answer:

$a(n) = a(n - 1) - 27$

The nth number is the previous one minus 27.

54 = 81 - 27

27 = 54 - 27

0 = 27 - 27

And so on....

You might be interested in

Evaluate this expression by distributing the multiplication over division: 5 x (7+4)

Maru [420]

Answer:

I think you can write like this:

5 x (5+2+4)

5 x 11

Step-by-step explanation:

My own knowladge

Hope it helps

Put a thanks

Thank you

6 0

3 years ago

Solve the quadratic by factoring.<br> x^2-5x-31=5

torisob [31]

Answer:

$x = - 4\: or \: x = 9$

Step-by-step explanation:

make one side equal to zero:

${x}^{2} - 5x - 36 = 0$

find two factors that multiply to -36 and add to -5 (-9 & 4)

${x }^{2} - 9x + 4x - 36 = 0$

factorise

$x(x - 9) + 4(x - 9) = 0$

$(x + 4)(x - 9) = 0$

solve for x

$x = - 4 \: or \: x = 9$

5 0

4 years ago

Factor out 3^2 ^3−18^2 ^4

34kurt

The factor of three is six factor of two is to 3 is three factor of two is 22 is four and poster of four is 22 Answer

3 0

3 years ago

Help me please help help help help

sineoko [7]

Answer:

Step-by-step explanation:

it is the same angle from one side and theother

3 0

2 years ago

Read 2 more answers

Use the given values to complete to each table.<br> PLEASE HELP.

3241004551 [841]

I don’t know honestly

3 0

3 years ago

Read 2 more answers